我正在嘗試做一個簡單的擦除,並不斷收到錯誤。幫助C++清單擦除功能
這裏是代碼爲我擦的片段:
std::list<Mine*>::iterator iterMines = mines.begin();
for(int i = oldSizeOfMines; i >0 ; i--, iterMines++)
{
if(player->distanceFrom(*iterMines) < radiusOfOnScreen)
{
onScreen.push_back(*iterMines);
iterMines = onScreen.erase(iterMines);
iterMines--;
}
}
我不斷收到一個編譯器消息:
1>c:\users\owner\desktop\bosconian\code\bosconian\environment.cpp(158) : error C2664: 'std::list<_Ty>::_Iterator<_Secure_validation> std::list<_Ty>::erase(std::list<_Ty>::_Iterator<_Secure_validation>)' : cannot convert parameter 1 from 'std::list<_Ty>::_Iterator<_Secure_validation>' to 'std::list<_Ty>::_Iterator<_Secure_validation>'
1> with
1> [
1> _Ty=SpaceObject *,
1> _Secure_validation=true
1> ]
1> and
1> [
1> _Ty=Mine *,
1> _Secure_validation=true
1> ]
1> and
1> [
1> _Ty=SpaceObject *,
1> _Secure_validation=true
1> ]
1> No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
我很困惑,因爲我相信我給它正確的迭代器。
煤礦是SpaceObject的子類(第二代子類是)
這是否有什麼關係呢?我將如何解決它?
只是爲了確保,是行158「iterMines = onScreen.erase(iterMines);」? – 2008-12-17 02:26:37